Overview
The Banner SM31E is a mini-beam infrared photoelectric emitter sensor from Banner Engineering’s Mini-Beam-DC-Voltage series. This opposed-mode modulated infrared sensor operates on 10-30VDC and delivers a 3-meter (10 ft) sensing range, making it ideal for through-beam detection in industrial automation, conveyor control, and motion sensing applications. The emitter is pre-wired with a 2-meter (6.5 ft) cable with flying leads for quick integration into control systems.
Key Features
- Through-Beam Detection: Opposed-mode modulated infrared sensing for reliable object detection and interruption sensing
- 3-Meter Sensing Range: 10 ft standard range covers most registration and position-detection applications
- Wide Voltage Input: 10–30 V DC operation provides compatibility with 12 V, 24 V, and higher DC power supplies
- IP67 Enclosure Rating: Sealed to withstand dust, moisture, and washdown environments
- M18 Threaded Mount: Compact 18 mm barrel mount fits standard industrial sensor brackets and holders
- Alignment Indicator (AID™): Rear-mounted red LED shows light detect status with pulse-rate feedback on signal strength
- Rugged Construction: Thermoplastic housing and acrylic lens rated –20 to +70°C ambient temperature range
Technical Specifications
| Supply Voltage | 10–30 V DC |
| Sensing Range | 3 m (10 ft) |
| Output Current | Not applicable (emitter only; no transistor outputs) |
| Cable Length | 2 m (6.5 ft) with flying leads |
| Sensor Type | Infrared (modulated opposed-mode) |
| Mount Type | M18 threaded barrel |
| Operating Temperature | –20 to +70°C |
| Housing Material | Thermoplastic with acrylic lens |
| IP Rating | IP67 |
| Series | Mini-Beam-DC-Voltage |
| Manufacturer | Banner Engineering |
Typical Applications
- Carton and package detection on conveyor lines
- Registration mark sensing for web-break detection
- Clear film and transparent material detection
- Baggage handling and material flow control
- Product positioning and motion confirmation
- Industrial automation presence/absence sensing
Compatibility & Replacements
Compatible With
- Banner SM312 series receiver units (paired for opposed-mode operation)
- Standard 12 V, 24 V, and higher DC automation power supplies
- Industrial PLC and motion controller I/O inputs
- Standard M18 sensor brackets and mounting hardware
- Control systems requiring through-beam photoelectric detection
Replaces / Drop-In Replacement For
- Legacy Banner SM31E units (same model number; verify cable configuration)
- 18 mm barrel-type photoelectric through-beam emitters with equivalent 3 m range (consult integrator for mechanical fit)
Works With
- Banner receiver units configured for light-operate or dark-operate logic
- Modulated infrared sensing systems (reduces ambient light interference)
- Conveyor control and registration systems
- Motion confirmation circuits requiring opposed-mode detection
- PLC and controller analog or digital I/O inputs via paired receiver output
